From: Junio C Hamano Date: Mon, 22 Apr 2013 18:26:56 +0000 (-0700) Subject: Merge branch 'jc/apply-ws-fix-tab-in-indent' into maint X-Git-Tag: v1.8.2.2~28 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/21247455f328fcf26fc4f78134bcc6f8a676fa8a?hp=-c Merge branch 'jc/apply-ws-fix-tab-in-indent' into maint * jc/apply-ws-fix-tab-in-indent: test: resurrect q_to_tab apply --whitespace=fix: avoid running over the postimage buffer --- 21247455f328fcf26fc4f78134bcc6f8a676fa8a diff --combined builtin/apply.c index f6a3c97dd5,df773c75b9..30eefc3c7b --- a/builtin/apply.c +++ b/builtin/apply.c @@@ -1041,17 -1041,15 +1041,17 @@@ static int gitdiff_renamedst(const cha static int gitdiff_similarity(const char *line, struct patch *patch) { - if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX) - patch->score = 0; + unsigned long val = strtoul(line, NULL, 10); + if (val <= 100) + patch->score = val; return 0; } static int gitdiff_dissimilarity(const char *line, struct patch *patch) { - if ((patch->score = strtoul(line, NULL, 10)) == ULONG_MAX) - patch->score = 0; + unsigned long val = strtoul(line, NULL, 10); + if (val <= 100) + patch->score = val; return 0; } @@@ -1921,7 -1919,7 +1921,7 @@@ static int parse_binary(char *buffer, u } /* - * Read the patch text in "buffer" taht extends for "size" bytes; stop + * Read the patch text in "buffer" that extends for "size" bytes; stop * reading after seeing a single patch (i.e. changes to a single file). * Create fragments (i.e. patch hunks) and hang them to the given patch. * Return the number of bytes consumed, so that the caller can call us @@@ -2097,7 -2095,7 +2097,7 @@@ static void update_pre_post_images(stru char *buf, size_t len, size_t postlen) { - int i, ctx; + int i, ctx, reduced; char *new, *old, *fixed; struct image fixed_preimage; @@@ -2107,20 -2105,18 +2107,20 @@@ * free "oldlines". */ prepare_image(&fixed_preimage, buf, len, 1); - assert(fixed_preimage.nr == preimage->nr); - for (i = 0; i < preimage->nr; i++) + assert(postlen + ? fixed_preimage.nr == preimage->nr + : fixed_preimage.nr <= preimage->nr); + for (i = 0; i < fixed_preimage.nr; i++) fixed_preimage.line[i].flag = preimage->line[i].flag; free(preimage->line_allocated); *preimage = fixed_preimage; /* * Adjust the common context lines in postimage. This can be - * done in-place when we are just doing whitespace fixing, - * which does not make the string grow, but needs a new buffer - * when ignoring whitespace causes the update, since in this case - * we could have e.g. tabs converted to multiple spaces. + * done in-place when we are shrinking it with whitespace + * fixing, but needs a new buffer when ignoring whitespace or + * expanding leading tabs to spaces. + * * We trust the caller to tell us if the update can be done * in place (postlen==0) or not. */ @@@ -2130,8 -2126,7 +2130,8 @@@ else new = old; fixed = preimage->buf; - for (i = ctx = 0; i < postimage->nr; i++) { + + for (i = reduced = ctx = 0; i < postimage->nr; i++) { size_t len = postimage->line[i].len; if (!(postimage->line[i].flag & LINE_COMMON)) { /* an added line -- no counterparts in preimage */ @@@ -2150,15 -2145,8 +2150,15 @@@ fixed += preimage->line[ctx].len; ctx++; } - if (preimage->nr <= ctx) - die(_("oops")); + + /* + * preimage is expected to run out, if the caller + * fixed addition of trailing blank lines. + */ + if (preimage->nr <= ctx) { + reduced++; + continue; + } /* and copy it in, while fixing the line length */ len = preimage->line[ctx].len; @@@ -2171,7 -2159,6 +2171,7 @@@ /* Fix the length of the whole thing */ postimage->len = new - postimage->buf; + postimage->nr -= reduced; } static int match_fragment(struct image *img, @@@ -2185,7 -2172,7 +2185,7 @@@ int i; char *fixed_buf, *buf, *orig, *target; struct strbuf fixed; - size_t fixed_len; + size_t fixed_len, postlen; int preimage_limit; if (preimage->nr + try_lno <= img->nr) { @@@ -2335,6 -2322,7 +2335,7 @@@ strbuf_init(&fixed, preimage->len + 1); orig = preimage->buf; target = img->buf + try; + postlen = 0; for (i = 0; i < preimage_limit; i++) { size_t oldlen = preimage->line[i].len; size_t tgtlen = img->line[try_lno + i].len; @@@ -2362,6 -2350,7 +2363,7 @@@ match = (tgtfix.len == fixed.len - fixstart && !memcmp(tgtfix.buf, fixed.buf + fixstart, fixed.len - fixstart)); + postlen += tgtfix.len; strbuf_release(&tgtfix); if (!match) @@@ -2399,8 -2388,10 +2401,10 @@@ * hunk match. Update the context lines in the postimage. */ fixed_buf = strbuf_detach(&fixed, &fixed_len); + if (postlen < postimage->len) + postlen = 0; update_pre_post_images(preimage, postimage, - fixed_buf, fixed_len, 0); + fixed_buf, fixed_len, postlen); return 1; unmatch_exit: @@@ -3025,7 -3016,7 +3029,7 @@@ static struct patch *in_fn_table(const * * The latter is needed to deal with a case where two paths A and B * are swapped by first renaming A to B and then renaming B to A; - * moving A to B should not be prevented due to presense of B as we + * moving A to B should not be prevented due to presence of B as we * will remove it in a later patch. */ #define PATH_TO_BE_DELETED ((struct patch *) -2) @@@ -3509,7 -3500,7 +3513,7 @@@ static int check_patch(struct patch *pa * * A patch to swap-rename between A and B would first rename A * to B and then rename B to A. While applying the first one, - * the presense of B should not stop A from getting renamed to + * the presence of B should not stop A from getting renamed to * B; ask to_be_deleted() about the later rename. Removal of * B and rename from A to B is handled the same way by asking * was_deleted(). @@@ -3600,40 -3591,6 +3604,40 @@@ static int get_current_sha1(const char return 0; } +static int preimage_sha1_in_gitlink_patch(struct patch *p, unsigned char sha1[20]) +{ + /* + * A usable gitlink patch has only one fragment (hunk) that looks like: + * @@ -1 +1 @@ + * -Subproject commit + * +Subproject commit + * or + * @@ -1 +0,0 @@ + * -Subproject commit + * for a removal patch. + */ + struct fragment *hunk = p->fragments; + static const char heading[] = "-Subproject commit "; + char *preimage; + + if (/* does the patch have only one hunk? */ + hunk && !hunk->next && + /* is its preimage one line? */ + hunk->oldpos == 1 && hunk->oldlines == 1 && + /* does preimage begin with the heading? */ + (preimage = memchr(hunk->patch, '\n', hunk->size)) != NULL && + !prefixcmp(++preimage, heading) && + /* does it record full SHA-1? */ + !get_sha1_hex(preimage + sizeof(heading) - 1, sha1) && + preimage[sizeof(heading) + 40 - 1] == '\n' && + /* does the abbreviated name on the index line agree with it? */ + !prefixcmp(preimage + sizeof(heading) - 1, p->old_sha1_prefix)) + return 0; /* it all looks fine */ + + /* we may have full object name on the index line */ + return get_sha1_hex(p->old_sha1_prefix, sha1); +} + /* Build an index that contains the just the files needed for a 3way merge */ static void build_fake_ancestor(struct patch *list, const char *filename) { @@@ -3645,6 -3602,7 +3649,6 @@@ * worth showing the new sha1 prefix, but until then... */ for (patch = list; patch; patch = patch->next) { - const unsigned char *sha1_ptr; unsigned char sha1[20]; struct cache_entry *ce; const char *name; @@@ -3652,25 -3610,20 +3656,25 @@@ name = patch->old_name ? patch->old_name : patch->new_name; if (0 < patch->is_new) continue; - else if (get_sha1_blob(patch->old_sha1_prefix, sha1)) - /* git diff has no index line for mode/type changes */ - if (!patch->lines_added && !patch->lines_deleted) { - if (get_current_sha1(patch->old_name, sha1)) - die("mode change for %s, which is not " - "in current HEAD", name); - sha1_ptr = sha1; - } else - die("sha1 information is lacking or useless " - "(%s).", name); - else - sha1_ptr = sha1; - ce = make_cache_entry(patch->old_mode, sha1_ptr, name, 0, 0); + if (S_ISGITLINK(patch->old_mode)) { + if (!preimage_sha1_in_gitlink_patch(patch, sha1)) + ; /* ok, the textual part looks sane */ + else + die("sha1 information is lacking or useless for submoule %s", + name); + } else if (!get_sha1_blob(patch->old_sha1_prefix, sha1)) { + ; /* ok */ + } else if (!patch->lines_added && !patch->lines_deleted) { + /* mode-only change: update the current */ + if (get_current_sha1(patch->old_name, sha1)) + die("mode change for %s, which is not " + "in current HEAD", name); + } else + die("sha1 information is lacking or useless " + "(%s).", name); + + ce = make_cache_entry(patch->old_mode, sha1, name, 0, 0); if (!ce) die(_("make_cache_entry failed for path '%s'"), name); if (add_index_entry(&result, ce, ADD_CACHE_OK_TO_ADD)) diff --combined t/t4124-apply-ws-rule.sh index 581a801649,0bbcf0603d..5d0c598338 --- a/t/t4124-apply-ws-rule.sh +++ b/t/t4124-apply-ws-rule.sh @@@ -47,7 -47,7 +47,7 @@@ test_fix () # find touched lines $DIFF file target | sed -n -e "s/^> //p" >fixed - # the changed lines are all expeced to change + # the changed lines are all expected to change fixed_cnt=$(wc -l preimage <<-\EOF && + QQa + QQb + QQc + ZZZZZZZZZZZZZZZZd + QQe + QQf + QQg + EOF + qz_to_tab_space >patch <<-\EOF && + diff --git a/preimage b/preimage + --- a/preimage + +++ b/preimage + @@ -1,7 +1,6 @@ + QQa + QQb + QQc + -QQd + QQe + QQf + QQg + EOF + git -c core.whitespace=tab-in-indent apply --whitespace=fix patch + ' + test_done diff --combined t/test-lib-functions.sh index fa62d010f6,4a8bac282b..3fc9cc9288 --- a/t/test-lib-functions.sh +++ b/t/test-lib-functions.sh @@@ -91,6 -91,10 +91,10 @@@ q_to_tab () tr Q '\011' } + qz_to_tab_space () { + tr QZ '\011\040' + } + append_cr () { sed -e 's/$/Q/' | tr Q '\015' } @@@ -275,15 -279,6 +279,15 @@@ test_have_prereq () for prerequisite do + case "$prerequisite" in + !*) + negative_prereq=t + prerequisite=${prerequisite#!} + ;; + *) + negative_prereq= + esac + case " $lazily_tested_prereq " in *" $prerequisite "*) ;; @@@ -303,20 -298,10 +307,20 @@@ total_prereq=$(($total_prereq + 1)) case "$satisfied_prereq" in *" $prerequisite "*) + satisfied_this_prereq=t + ;; + *) + satisfied_this_prereq= + esac + + case "$satisfied_this_prereq,$negative_prereq" in + t,|,t) ok_prereq=$(($ok_prereq + 1)) ;; *) - # Keep a list of missing prerequisites + # Keep a list of missing prerequisites; restore + # the negative marker if necessary. + prerequisite=${negative_prereq:+!}$prerequisite if test -z "$missing_prereq" then missing_prereq=$prerequisite @@@ -602,13 -587,6 +606,13 @@@ test_cmp() $GIT_TEST_CMP "$@" } +# Tests that its two parameters refer to the same revision +test_cmp_rev () { + git rev-parse --verify "$1" >expect.rev && + git rev-parse --verify "$2" >actual.rev && + test_cmp expect.rev actual.rev +} + # Print a sequence of numbers or letters in increasing order. This is # similar to GNU seq(1), but the latter might not be available # everywhere (and does not do letters). It may be used like: